<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
</head>
<body>
	<form action="" method="post">
		<input type="radio" name="city"value="a">a
		<input type="radio" name="city"value="b">b
		<input type="radio" name="city"value="c">c

		<input type="radio" name="expir"value="a">a
		<input type="radio" name="expir"value="b">b
		<input type="radio" name="expir"value="c">c
		<input type="submit" value="提交">
	</form>
</body>
</html>